Levels and patterns of male fertility are poorly documented in developing countries. Demographic accounts of male fertility focus primarily on developed countries, and where such accounts do exist for developing countries they are mainly available at the local or regional level. This study shows that Demographic and Health Surveys constitute a valuable and untapped source of data that can be used to document male fertility in a large number of countries. Male fertility rates are markedly different from female fertility rates in developing countries, and documenting both male and female fertility provides a more complete picture of fertility.